Sash-holding device.



Patented Aug. 27, |901.

A G TIDD SASH HULDING DEVICE.

(Application led Mar. 22, 1900;)

(No Model.)

ARTHUR G. |TIDD, OF NORTHAMPTON, MASSACHUSETTS.

SASH-HOLDING DEVICE.

SPECIFICATION forming part Of Letters Patent N0. 681,379, dated August27, 1901.

Application filed March 22, 1900. Serial No, 9,647. (No model.)

To @ZZ whom it 71u03/ concern:

Be it known that I, ARTHUR G. TIDD, a citizen of the United States ofAmerica, residing in Northampton, in the county of Hampshire and Stateof Massachusetts, have invented new and useful Improvements inSash-Holding Devices, of which the following is a speciication,reference being had to the accompanying drawings and letters ofreference marked thereon. My invention relates to an antifriction deviceadapted to automatically hold a windowsash in the desired position,which device also operates as an antirattler.

The object of my invention is to produce a device which shall be simple,inexpensive, readily adjusted, and effective in operation; and myinvention consists in the construction herein shown.

In the accompanying drawings, in which like letters of referenceindicate like parts, Figure l is an elevation, partly in section,showinga portion of a window-sash and a portion of a window-frame andshowing one sashholding device mounted in the sash-rail in section andone mounted therein in full lines. Fig. 2 is an edge view of a portionof a window-sash, showing two of said holding devices mounted therein.Fig. 3 is a view of a metal strip provided with a shallowlongitudinalgrecess forming a runway and depressions in the runway forthe balls to set into. Fig. it is a sectional view of the same, taken online 4 4 of Fig. 3. Fig. 5 is a sectional view of a portion of a sashrail or frame with a tack having a concave head mounted therein, thisbev ing designed as a modification of the continuous metal stripillustrated in Figs. 3 and 4. Fig. 6 is a view in section of thesimplest form of construction of my device, no means being thereinillustrated for altering the tension of the spring. Fig. 7 is a view insection of a cup or shell made in two parts, having threaded connectionbetween the two, whereby the spring may be compressed and the tensionvaried by turning one of the tubular parts, thus bringing the lower orinner portion toward the outer portion and compressing the spring. Fig.8 is a sectional View illustrating a modification wherein thecompression of the spring is produced by similar means, the outertubular part having Generally a indicates one of the vertical rails of awindow-sash; b, a window-casing; c, a cup or shell, preferablycylindrical; d, a ball; e, a follower; f, a spring, and g a metallicstrip.

The construction and operation of my device will be readily understoodon reference to the drawings.

The simplest form of contrivance designed to accomplish the desiredresult and adapted for use in many places where considerable jar is notfound or the window-sash is of light weight is illustrated in Fig. 6,rcomprising a tubular part c, having its outer end swaged or turnedinwardly, thus forming an annular inwardly-overhanging edge andpreventing escape of the ball and having the follower e and ball CZ anda spiral springf, mounted in said shell. In some instances where theweight to be sustained is considerable or where the sash is subjected toconsiderable jar, as in the case of railway-cars, I prefer to formrecesses for the ball to rest in at regular intervals, and where thewear is liable to be considerable, and especially Where the materialagainst which the ball bears is of soft metal, I provide a strip g,mounted in the line of the traverse of the ball, and I preferto providethis metal strip with a shallow channel or recess and shallowdepressions at intervals, in which the ball is forced as it is broughtopposite the same, and thus danger of accidental moving of the sash willbe avoided, and as a modification I in some instances prefer to employthe concave-headed tack t' illustrated in Fig. 5.

It will be observed that the result is the same whether the holdingdevice be mounted in the sash and the balls bear toward the casing orwhether the holding device be mounted in the frame or casing and theballs bear to- IOO ward the sash. I prefer, however, to mount the devicein the sash. In order to adapt the device to various uses, I prefer insome cases to provide a means whereby the pressure ofthe spring againstthe follower, and hence the pressure of the ball outwardly, may beregulated, so that while a device if employed upon a light sash,wherethere is no jar, might require but slight pressure of the spring, if thesame device be employed upon a heavy window or a window, forillustration, of a railway-car, where the jar is considerable, then thespring would require to be of greater strength or under greater tensionto prevent accidental movement of the sash, and to accomplish thisresult I provide means for compressing the spring, and one of thesimplest means to accomplish this result is illustrated in Fig.

9, wherein a threaded plug or bottom enters' the inner end of the shelland bears against the spring. Thus by turning the plug while the shellis at rest or turning the shell while the plug is at rest the plug maybe carried in or out of the shell, thus varying the tension of thespring. A similar construction in modified form is shown in Fig. l,wherein a follower j is provided at the base portion' of the shell c anda screw arranged to pass through the base of the shell and bear againstsaid follower, so that by turning the setscrew in either direction thetension of the spring may be varied, and to avoid necessity of removingthe holding device from the sash or window-frame for the purpose ofproducing this adjustment I prefer to make the head ot the adjusting-screw 7c rectangular or triangular in cross-section and ot'considerable length, and this being forced tightly into a recess whichis adapted to receive it under suiiicient pressure will restrain it fromturning, and by the employment of a Spanner entering the opening l inthe outer face ofthe cup or shell it may be turned in either direction,and as at this time the adjusting screw or plug is prevented fromrotating the follower or plug will of course be carried toward or fromthe base of the shell,and thus vary the tension upon the spring. As amodification and to accomplish the same result I in some instancesprefer to make the shell in two parts, as illustrated in Fig. 7, theouter portion being interiorly threaded and the inner portion beingexteriorly threaded, and to prevent rotation of the inner portion Iprovide one or more spurs or tacks m, projecting from the bottom, and itwill be observed that a rotation of the outer portion of theshell willoperate to move the lower portion toward or from the outer portion, andthus vary the tension upon the spring. A similar construction is alsoillustrated in Fig. S, wherein the outer portion is eXteriorly threadedand the inner portion interiorly threaded, and of course a rotation ofeither of the parts, the other being at rest, will operate to vary thetension of the spring.

In each instance the ball is held from being carried too far outwardlyby the inturned annular overhanging ange or ring portion n.

Having therefore described my invention, what I claim, and desire tosecure by Letters Patent, is-

1. The combination in a sash-holding device of a cylindrical outer shelladapted to set into a cylindrical recess in a sash or casing andthreaded at its inner portion, a threaded part adapted to engage saidthread on the outer shell, means projecting from said second threadedpart to engage the material into which the device`sets and preventrotation of said second threaded part, a spring and ball arranged withinthe device and means to rotate the outer threaded part whereby the innerthreaded part may thus be forced outwardly or inwardly by reason of therotation of said outer part, substantially as shown.

2. The combination of a cylindrical shell, a threaded plug in the innerend thereof, the head of the plug being other than round and projectingbeyond the end of the shell,where by the shell may be turned While inplace and the plug remain at rest, a ball in the open end and a spring,hearing against the plug and arranged to force the ball outwardly.

3. In combination with a spur-provided recessed part or concave-headedtack adapted to be afiiXed to a sash or casing, a cylindrical outershell capable of being turned, threaded to an inner member fixed in acasing or sash, the outer end of said shell being turned inwardly, aball in said shell protruding from said inwardly-turned end, adapted toenter said recessed part, and a spring to thrust said ball outward, thetension of said spring and the consequent force of contact between saidball and recessed part being regulated by said threaded members,substantially as described.

ARTHUR Gr. TIDD.

Witnesses:

DEETER E. TILLEY, THOMAS E. IRWIN.

IOO

